For the second time this season, an NBA player suffered an in-game leg-break that left teammates and opponents ashen-faced on the court.

Isaiah Canaan, the fifth-year Phoenix Suns guard, went for a layup in the first quarter of the Suns’ nationally televised game against the Dallas Mavericks on Wednesday night.

The attempt was blocked, though, and Canaan fell awkwardly with his weight on his left leg. “Canaan’s left foot was pointing in an unnatural direction,” The Washington Post reported. “While waiting for medical attention, Canaan remained notably calm, likely due to shock and/or adrenaline.”

Journalist Andrew Jerell Jones posted a video of the incident on Twitter. You can see Devin Booker, the Suns’ All-Rookie shooting guard, cover his eyes with his top as the full extent of Canaan’s injury becomes clear.

 

 

The Suns tweeted that Canaan had a left ankle fracture.

 

 

Scott Bordow, the Suns reporter for AZCentral, reported on the graphic details of Canaan’s injury. “ Isaiah Canaan is down and his left ankle is pointing in a direction it shouldn’t,” Bordow wrote on Twitter. “Bone came out. Suns team in shock."

Gordon Hayward, the Boston Celtics small forward, suffered a similarly horrific injury minutes into his first game with the franchise in October. Hayward was attempting an alley-oop against the Cavaliers when he was hit in the air. Hayward suffered a fractured tibia and dislocated ankle in the incident.

The Mavericks offered their support for Canaan on Twitter. “ Prayers up for Isaiah Canaan,” the organization wrote.

 

 

Canaan has been a useful role-player for the Suns, averaging 8.9 points per game and 3.9 assists through 19 games of this NBA season. He was picked in the second round by the Rockets in 2013 out of Murray State. Canaan was the 34th overall pick. He was an NBA D-League All-Star in 2014.